I get the feeling the son is a reincarnator. That'd explain wanting away from his mom with uncontrolled strength and all being a life ending hazard. Also explains why he wanted to fondle the hero's boobs.
Thanks for the chapter!
And damn, Grand is baby of culture. 🤣
That stare Marika gives Dariel in the last page while he look at Grand made me thing of a yandere Marika, thats scary :x